<!--
  The Head
  v2.0
  https://github.com/cotes2020/jekyll-theme-chirpy
  © 2017-2019 Cotes Chung
  MIT License
-->

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

  <title>
  {%- unless page.layout == "home" -%}
    {{ page.title | append: " | "}}
  {%- endunless -%}
    {{ site.title }}
  </title>

  {% seo title=false %}

  {% include favicons.html %}

  <!-- Google Fonts -->
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="anonymous">
  <link rel="dns-prefetch" href="https://fonts.gstatic.com">

  <!-- GA -->
  {% if jekyll.environment == 'production' %}
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin="use-credentials">
    <link rel="dns-prefetch" href="https://www.google-analytics.com">

    <link rel="preconnect" href="https://www.googletagmanager.com" crossorigin="anonymous">
    <link rel="dns-prefetch" href="https://www.googletagmanager.com">

    {% if site.google_analytics.pv.proxy_url and site.google_analytics.pv.enabled %}
      <link rel="preconnect" href="{{ site.google_analytics.pv.proxy_url }}" crossorigin="use-credentials">
      <link rel="dns-prefetch" href="{{ site.google_analytics.pv.proxy_url }}">
    {% endif %}
  {% endif %}

  <!-- jsDelivr CDN -->
  <link rel="preconnect" href="cdn.jsdelivr.net">
  <link rel="dns-prefetch" href="cdn.jsdelivr.net">

  <!-- Bootstrap -->
  <link rel="preload" as="style"
    href="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/css/bootstrap.min.css"
    integrity="sha256-LA89z+k9fjgMKQ/kq4OO2Mrf8VltYml/VES+Rg0fh20=" crossorigin>

  <link rel="stylesheet"
    href="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/css/bootstrap.min.css"
    integrity="sha256-LA89z+k9fjgMKQ/kq4OO2Mrf8VltYml/VES+Rg0fh20=" crossorigin="anonymous">

  <!-- Font Awesome -->
  <link rel="stylesheet"
    href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.11.2/css/all.min.css"
    integrity="sha256-+N4/V/SbAFiW1MPBCXnfnP9QSN3+Keu+NlB+0ev/YKQ="
    crossorigin="anonymous">

  {% include css-selector.html %}

  <!-- JavaScripts -->

  <link rel="preload" as="script" href="https://cdn.jsdelivr.net/npm/jquery@3.4.1"
    integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous">

  <script src="https://cdn.jsdelivr.net/npm/jquery@3.4.1"
    integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>

  <script src="https://cdn.jsdelivr.net/combine/npm/popper.js@1.15.0,npm/bootstrap@4.0.0/dist/js/bootstrap.min.js" async></script>

  {% include js-selector.html %}

</head>